Technical data

OM 1191 67
Fieldbus Adapter
Fieldbus Adapter
Overview
The MD5 can be set up to accept control from an external
system using standard serial communication protocols. When
using serial communication, the MD5 can either:
• Receiveallofitscontrolinformationfromtheeldbus,
or
• Becontrolledfromsomecombinationofeldbuscontrol
and other available control locations, such as digital or
analog inputs, and the control panel.
Figure 10: Available Control Locations
Twobasicserialcommunicationscongurationsareavailable:
• Embeddedeldbus(EFB)–SeeEmbedded Fieldbus on
page 45.
• Fieldbus adapter (FBA) – With one of the optional
FBA modules in the drive’s expansion slot 2, the drive
can communicate to a control system using one of the
following protocols:
— Probus-DP
®
— LonWorks
®
— CANopen
®
— DeviceNet
®
— ControlNet
®
— Ethernet
®
The MD5 detects automatically which communication
protocolisusedbytheplug-in
eldbusadapter.Thedefault
settingsforeachprotocolassumethattheproleusedisthe
protocol’sindustry-standarddriveprole(e.g.PROFIdrive
for PROFIBUS, AC/DC Drive for DeviceNet). All of the
FBA protocolscanalsobeconfiguredfortheDaikinDrives
profile.
Congurationdetailsdependontheprotocolandproleused.
These details are provided in a user’s manual supplied with
the FBA module.
DetailsfortheDaikinDrivesprofile(whichapplyfor all
protocols) are provided in Daikin drives profiletechnical
dataonpage89.
Control interface
Ingeneral,thebasiccontrolinterfacebetweentheeldbus
system and the drive consists of:
• Output Words:
— CONTROL WORD
— REFERENCE (speed or frequency)
— Others: The drive supports a maximum of 15 output
words. Protocols limits may further restrict the total.
• Input Words:
— STATUS WORD
— Actual Value (speed or frequency)
— Others: The drive supports a maximum of 15 input
words. Protocols limits may further restrict the total.
NOTE: The words “output” and “input” are used as seen from
the eldbus controller point of view. For example an
output describes data ow from the eldbus controller
to the drive and appears as an input from the drive
point of view.
The meanings of the controller interface words are not
restrictedbytheMD5.However,theproleusedmayset
particular meanings.
Figure 11: Controller Interface Words